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| author | Ulrich Drepper <drepper@redhat.com> | 2004-03-24 06:36:06 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-03-24 06:36:06 +0000 |
| commit | 2c0b891afe29dd28d0e6d75e0da8681db7fd100d (patch) | |
| tree | 06fead8fc58acefbe9a9ebe353f0d596e73522ad /nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h | |
| parent | 565699e492f741bc4563c73046f457924c6f708a (diff) | |
| download | glibc-2c0b891afe29dd28d0e6d75e0da8681db7fd100d.tar.gz glibc-2c0b891afe29dd28d0e6d75e0da8681db7fd100d.tar.xz glibc-2c0b891afe29dd28d0e6d75e0da8681db7fd100d.zip | |
Update.
* sysdeps/unix/sysv/linux/smp.h: New file. * sysdeps/unix/sysv/linux/sh/smp.h: New file. * init.c: Define __is_smp. (__pthread_initialize_minimal_internal): Call is_smp_system to initialize __is_smp. * pthreadP.h: Declare __is_smp. Define MAX_ADAPTIVE_COUNT is necessary. * pthread_mutex_init.c: Add comment regarding __spins field. * pthread_mutex_lock.c: Implement adaptive mutex type. * pthread_mutex_timedlock.c: Likewise. * sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h (pthread_mutex_t): Add __spins field. * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h: Define lll_mutex_cond_trylock. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h: Likewise. Define BUSY_WAIT_NOP. * sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise. * tst-mutex5.c: Add support for testing adaptive mutexes. * tst-mutex7.c: Likewise. * tst-mutex5a.c: New file. * tst-mutex7a.c: New file. * Makefile (tests): Add tst-mutex5a and tst-mutex7a.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h index 9d125e0d6d..a7079a8490 100644 --- a/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/alpha/lowlevellock.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -80,6 +80,14 @@ __lll_mutex_trylock(int *futex) #define lll_mutex_trylock(lock) __lll_mutex_trylock (&(lock)) +static inline int __attribute__((always_inline)) +__lll_mutex_cond_trylock(int *futex) +{ + return atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0; +} +#define lll_mutex_cond_trylock(lock) __lll_mutex_cond_trylock (&(lock)) + + extern void __lll_lock_wait (int *futex) attribute_hidden; static inline void __attribute__((always_inline)) |